东营凹陷东部深层浊积扇油藏成藏条件与模式研究

岩性油气藏已成为东营凹陷油气勘探的重点。东营凹陷东部在沙三、沙四段沉积时期发育了大量厚层烃源岩，为圈闭成藏提供了充足的油气资源。勘探证实，东营凹陷东部发育三角洲前缘滑塌浊积、深水浊积扇等砂体类型，同时发育断裂型、砂体型、不整合面型等多种输导体系和良好的泥岩盖层。生、储、盖条件在时间和空间上具有良好的配置关系，为形成砂岩透镜体岩性油气藏和构造-岩性油气藏提供了良好条件。

Accumulation condition and model of turbidite fan reservoir in eastern Dongying Sag

Lithologic reservoir exploration has become one important oil-gas exploration target in Dongying Sag. Source rocks developed well in the third and fourth members of Shahejie Formation in eastern Dongying Sag, which supplied sufficient hydrocarbon resources for lithologic traps. The exploration practice indicates that this area developed delta front slump turbidite fan and deep-water turbidite fan, as well as transportation system and favorable mudstone seal. The source-reservoir-cap assembled well in space and time, which provides favorable conditions for the forming of sand lens lithologic reservoirs and structural-lithologic reservoirs.